Ore-concentrator.



e. T. (300m.

ORE CONCENTRATOR. APPLICATION -FILED NOV. I0, 1914.

1,201,151. Patented Oct. 10,1916.

3 SHEETS-SHEET l- I, War /afar.

G; T. COOLEY.

ORE CONCENTRATOR.

APPLICATION FILED NOV. :0. 1914.

1 ,201 1 5 1 Patented Oct. 10, 1916.

3 SHEETS-SHEET 2.

G- T. COOLEY.

ORE CONCENTRATOR.

APPLICATION FILED. NOV- 10, L914.

1 20 1 1 5 1 Patented Oct. 10, I916.

" g 3 $HEETS-SHEET 3- W I E GEORGE T. COOLEY, OF JOPLIN, LII SSOURI, ASSIGNOR 0F ONE-HALF TO JAMES ATHEL BRENT, OF SAN FRANCISCO, CALIFORNIA.

ORE-CONCENTRATOR.

Application filed November 10, 1914.

To all whom it may concern:

Be it known that I, GEORGE THOMPSON CooLEY, a citizen of the United States, residing at Joplin, in the county of Jasper and State of Missouri, have invented certain new and useful Improvements in Ore-Concentrators, of which the following is a specification.

My invention relates to an improvement in ore concentrators.

The object is to provide a machine of compact form, large capacity, which'will be effectual in the operation of separating the values from the gangue, and one which can be easily and quickly adjusted without stopping the machine to vary the inclination of the tables and the water-box.

A further object is to provide an ore concentrator having a battery of tables, all operated and adjustable alike, thus in small space multiplying the working surface and the capacity of the table in a ratio corresponding to the number of tables in the battery.

A still further object is to provide an ore concentrator in which the jar of the table is eased and made delicate, and the action made adequate and adaptable to the treatment of the finest possible particles, which vary from impalpable powder all the way to say as coarse as fifty or sixty mesh.

lVith these objects in view, my present invention comprises a frame, a plurality of tables, a three-point suspension for these tables, with means for adjusting their inclination both' longitudinally and transversely from a convenient point where the operator may manipulate the table, if desired, without the necessity of stopping it.

This invention yet further consists in a number of novel features of construction and combinations of elements which will be hereinafter fully described and set forth in the claims.

In the accompanying drawings :Figure 1 isa view in perspective of my improved machine, showing the head motion at one end for reciprocating the entire battery of tables F ig. 2 is a fragmentary transverse sectional view; Fig. 3 is an enlarged detail in perspective showing one of the corner: suspensions, which is a'type of the suspension means at the one end of the frame; Fig. 1 is a similar View of the upper suspending support; Fig. 5 is a fragmentary view in perspective, with some fthe parts Specification of Letters Patent.

Patented Oct. 10, 1916.

Serial No. 871,307.

separated and detached at the head or feed end of the table; and Fig. 6 is an enlarged fragmentary vertical longitudinal sectional view through a part of the bolster and adjacent end of the table, showing the pivotal connection of the table with the bolster.

A, represents the framework of the machine, comprising upright posts and hori- Zontal sills, which preferably converge toward the head or motion end of the table, at which point the lower third of the frame is extended, as at 1, to afford a platform or support for the head motion 2.

VVbile any number- 0f tables may be used, four only are shown, as at 3, 3. These tables have what 1 term a three-point support. To give a general idea of the dimensions, the frame itself is say four by eleven feet over all; and the individual tables are say eighteen inches across at the head or feed end, three feet at the opposite or discharge end, and in the neighborhood of six and one-half or seven feet in length. Obviously I have no intention of confining myself to the dimensions. These are merely mentioned as preliminary to the description of the mode of suspension.

The table and the riifles on its surface are the subject-matter of application Ser. No. 871,305 of the same filing-date as this application, and hence no claims to or detailed description of the table and riffles will be made in the present application.

At or near the center of each head end, a bracket 4: is secured by bolts 5, 5; and

the depending end 6 has a hole 7 through which a bolt 8 extends, this bolt passing through a bolster 9. Washers 10, 10, are interposed between the depending end 7 of the bracket and the face of the bolster, and these are adapted to be kept well oiled as the tables are transversely tiltable from this point as a center of oscillation. The bolster 9 therefore forms a pivotal support for all of the tables at the head end, as

shown in both Figs. 1 and 5, in which provision is made for four-tables. The bolts 3' 8, 8, are held in place by a. nut 11, back of whichawasher 12 is placed; Between the washer 12 and the washer 13, the com pressible spiral spring 11 is held in the enlarged orifice '15 of the bolster, and, by. turning the nut 11, the tension of this sprin is increased; These bolts 8, 8, afford pivotal supports for the tables.

The bolster is suspended fromthe cross cap 16 of the frame in any approved manner, as for instance by means of the two links 17, 17, mounted on trunnions 18, 18, on the ends of the block 19, which latter is held on the lower side of the cap by bolts or other means 20, 20. The lower ends of these links 17, 17, are similarly mounted on trunnions 21, 21, on the plate 22, held by bolts or other means 23, 23, on the upper end of the bolster. Tie-bolts 24;, 24, extend across from one link to the other to hold them in place. This affords a convenient means of suspending and yet permitting the bolster to rock as motion is imparted thereto and the tables are reciprocated. The lengths of the links 17, 17, and the length of stroke, which usually does not exceed onefourth of an inch, thus make the arc in which their lower ends swing almost a straight line, which is desirable. At the other end of the frame, that is the end toward the discharge end of the tables, while any approved means might be employed for the suspension of the tables, I propose to use two slide-bars 25, 25. These are guided just within the vertical uprights of the frame through the keepers 26, 26, which hold them in place and yet permit them to slide freely. At their upper ends they are screw-threaded, as at 27, 27, where they are provided with pilot-wheels 28, 28, which latter rest on bearings 29, 29 secured at the top or corner of the frame. As the lower or discharge ends of the several tables are supported by these adjustable slide-bars 25 25, the entire weight is sustained by the pilot-wheels 28, 28 resting on the bearings 29, 29, and the operator adjusts and regulates both the longitudinal and transverse inclination of the tables by simply turning these two wheels. As they are within easy reach, and in the neighborhood of three feet apart, he can, if

he desires, place one hand on each wheel and turn both at once, either in the same direction or opposite directions, accordingly as he wishes to adjust the tables. The individual tables are suspended from these bars to give them freedom of motion, and as an approved means of doing this, the dumb-bell links 30, 30 may be employed. These have spherical heads, as shown, which are held in sockets 31 and 32 bolted respectively to the rods 25 and the lower sides of the tables 3, 3, as more clearly shown in Figs. 2, 3, and 4. Capplates 33, 33, are bolted down over these spherical ends, as shown, to retain them in place. In this way, the suspensory joints formed for the lower end of the table are of the ball and socket or universal type, this affording ease of adjustment as well as facilitating the rapid strokes of the table when the machine is in operation. By reason of the pivotal support at or near the head or feed end, a comparatively slight turn of the pilot-wheels makes a decided adjustment of the tables, and as these are all supported from a slide-rod 25 suspended on either side of the frame, the adjustment of all the tables is precisely alike, so that it is only necessary to turn the pilot-wheels either to the left or right accordingly as it is desired to lower or raise the tables. The feed-box 34 is secured to the table. It preferably has a sloping bottom, and discharges toward the adjacent upstanding upper side of the table. The water-boxes 35 are supported on the bolts 36, as shown, and they are raised or lowered by turning the thumb-screws 37, 37, thereon. Both the feed and water-boxes 3 k and 35 are graduated in size throughout their length, that is to say they decrease in size and capacity toward the discharge end of the table, for the reason that comparatively little water is desirable toward and at the discharge end of the table, and it is for this reason that the water-box is made easily adjustable, it being supported by arms 38 extending out from the frame, which makes it possible to regulate the discharge of water to just suit the requirements at any time without any cessation in the motion of the machine. One H. P. will drive four tables, and it is possible to treat a ton of ore per hour on each table, or approximately a hundred tons on the four decks in a period of twenty-four hours.

More or less slight variations might be made without departing from the spirit and scope of my invention, and hence I. do not wish to be limited to the precise construction herein set forth, but

I claim:

1. In an ore concentrator, the combination with a frame, of a bolster, means for suspending the latter from the frame, a plurality of tables pivotally and yieldably con- -nected with the bolster at one end, means connected with the tables for adjusting their inclination, and a head motion attached to the bolster.

2. In an ore concentrator, the combination with a frame, of a plurality of three-point suspension tables suspended in the frame, one of which suspensions is a horizontal pivot, and means at the sides for adjusting the inclination of the'tables simultaneously upon said pivots.

In testimony whereof I affix my signature in the presence of two witnesses.

GEO. T. COOLEY.

Vitnesses EMILY F. CAMP, VERNON E. I-Ionens.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0. 

